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Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data

BACKGROUND: The high under-five mortality rate (U5MR) in Africa is a significant public health concern. Previous studies have found that satellite retrieved light at night (LAN) data with long-term and global coverage can be used as a proxy for socio-economic development and urbanization. Currently,...

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Autores principales: Li, Xinyue, Bachwenkizi, Jovine, Chen, Renjie, Kan, Haidong, Meng, Xia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10685554/
https://www.ncbi.nlm.nih.gov/pubmed/38031047
http://dx.doi.org/10.1186/s12889-023-17284-1
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author Li, Xinyue
Bachwenkizi, Jovine
Chen, Renjie
Kan, Haidong
Meng, Xia
author_facet Li, Xinyue
Bachwenkizi, Jovine
Chen, Renjie
Kan, Haidong
Meng, Xia
author_sort Li, Xinyue
collection PubMed
description BACKGROUND: The high under-five mortality rate (U5MR) in Africa is a significant public health concern. Previous studies have found that satellite retrieved light at night (LAN) data with long-term and global coverage can be used as a proxy for socio-economic development and urbanization. Currently, few studies on the effects of LAN on child mortality have been conducted in Africa, a region with varying levels of urbanization between countries. OBJECTIVE: To quantify the correlation between risk of child mortality and LAN as an indicator of urbanization and economic development in Africa. METHODS: Using data from the Demographic and Health Survey (DHS) database conducted in 15 African countries out of 46 countries from 2005 to 2013, this study estimated LAN levels for children based on their year of birth and residential addresses. This study used Cox proportional hazards models to assess the association between LAN and the risk of child mortality in Africa. RESULTS: The mean U5MR was 95 per 1,000 livebirths among the 15 African countries during 2005–2013. After adjusting for covariates, each 10-unit increment in LAN was associated with a 5.3% reduction in the risk of U5MR. The effect estimates were more pronounced in areas with lower LAN. CONCLUSION: In Africa, the risk of U5MR decreased with increasing LAN, especially in areas with lower LAN. The results suggest that the development of urbanization and socio-economic conditions may be beneficial to child health, especially in regions with low LAN. The use of LAN as a proxy may offer an intriguing approach for identifying areas requiring targeted development in urbanization and socio-economic conditions. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12889-023-17284-1.
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spelling pubmed-106855542023-11-30 Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data Li, Xinyue Bachwenkizi, Jovine Chen, Renjie Kan, Haidong Meng, Xia BMC Public Health Research BACKGROUND: The high under-five mortality rate (U5MR) in Africa is a significant public health concern. Previous studies have found that satellite retrieved light at night (LAN) data with long-term and global coverage can be used as a proxy for socio-economic development and urbanization. Currently, few studies on the effects of LAN on child mortality have been conducted in Africa, a region with varying levels of urbanization between countries. OBJECTIVE: To quantify the correlation between risk of child mortality and LAN as an indicator of urbanization and economic development in Africa. METHODS: Using data from the Demographic and Health Survey (DHS) database conducted in 15 African countries out of 46 countries from 2005 to 2013, this study estimated LAN levels for children based on their year of birth and residential addresses. This study used Cox proportional hazards models to assess the association between LAN and the risk of child mortality in Africa. RESULTS: The mean U5MR was 95 per 1,000 livebirths among the 15 African countries during 2005–2013. After adjusting for covariates, each 10-unit increment in LAN was associated with a 5.3% reduction in the risk of U5MR. The effect estimates were more pronounced in areas with lower LAN. CONCLUSION: In Africa, the risk of U5MR decreased with increasing LAN, especially in areas with lower LAN. The results suggest that the development of urbanization and socio-economic conditions may be beneficial to child health, especially in regions with low LAN. The use of LAN as a proxy may offer an intriguing approach for identifying areas requiring targeted development in urbanization and socio-economic conditions. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12889-023-17284-1. BioMed Central 2023-11-29 /pmc/articles/PMC10685554/ /pubmed/38031047 http://dx.doi.org/10.1186/s12889-023-17284-1 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/ (https://creativecommons.org/publicdomain/zero/1.0/) ) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research
Li, Xinyue
Bachwenkizi, Jovine
Chen, Renjie
Kan, Haidong
Meng, Xia
Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data
title Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data
title_full Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data
title_fullStr Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data
title_full_unstemmed Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data
title_short Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data
title_sort association between light at night and the risk of child death in sub-saharan africa: a cross-sectional analysis based on dhs data
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10685554/
https://www.ncbi.nlm.nih.gov/pubmed/38031047
http://dx.doi.org/10.1186/s12889-023-17284-1
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